File bugs here for general Firefox build system issues. This includes problems running `mach build`, `mach configure`, `mach package`, `mach artifact`, and other mach commands related to building Firefox. This component also tracks issues related to moz.build and make files.

IMO we should change the Perfherder metrics to take into account buildbot vs TC so the numbers are part of separate metrics. Pretty sure this would fall under the domain of mozharness since it is what's outputting the TinderboxPrint messages that get turned into Perfherder data.
FWIW, we have similar problems elsewhere. e.g. "clobber" builds have completely different times from non-clobber builds. For any given job, you end up with N variations. e.g. "clobber+treeherder" versus "non-clobber+buildbot." Trying to shoehorn everything into a string gets difficult because order matters. So what you really want is the ability to associate N tags/annotations against a metric so you group/filter/distinguish data accordingly. That would certainly require changes on Perfherder to support, however.